Patents by Inventor Gilbert A. Hawkins

Gilbert A. Hawkins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160243827
    Abstract: A printhead includes a substrate having an enclosure that includes an aperture through which liquid drops and gas flow are emitted. An array of liquid drop ejectors is included in the enclosure, which eject the liquid drops emitted through the aperture in response to image data. An array of gas flow ejectors is included in the enclosure, which emit the gas flow through the aperture.
    Type: Application
    Filed: February 24, 2015
    Publication date: August 25, 2016
    Inventors: Gilbert A. Hawkins, Dennis R. Perchak
  • Patent number: 8807715
    Abstract: A method of printing includes selectively loading a memory element during a printing operation with data that modifies a subsequent actuation of jet control elements to form or steer or form and steer print drops that print pixels on a receiver in a second regularly spaced pixel grid, the second regularly spaced pixel grid having a second spatial density of pixels extending in a direction perpendicular to a travel path of the receiver that is different when compared to a first spatial density of a first regularly spaced pixel grid, printing pixels on the receiver in the second regularly spaced pixel grid, and catching drops that are formed but not used to print pixels on the receiver in the first regularly spaced pixel grid or used to print pixels on the receiver in the second regularly spaced pixel grid.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: August 19, 2014
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, James A. Katerberg
  • Patent number: 8764168
    Abstract: A continuous printer system includes a jet control element, associated with each nozzle bore of an array of nozzle bores, which is selectively actuated to form or steer or form and steer print drops from a liquid stream emitted from the associated nozzle bore. A memory element associated with the inkjet printer is selectively loaded during a printing operation with data that modifies the subsequent actuation of each of the jet control elements to form or steer or form and steer print drops that print pixels on a receiver in a second regularly spaced pixel grid, the second regularly spaced pixel grid having a second spatial density of pixels extending in a direction perpendicular to a travel path of the receiver that is different when compared to a first spatial density of a first regularly spaced pixel grid.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: July 1, 2014
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, James A. Katerberg
  • Patent number: 8752924
    Abstract: A printhead includes a nozzle and a jet control element. The jet control element includes a continuous heater element positioned to surround the nozzle and a plurality of three or more electrical contacts in electrical communication with the continuous heater element. The plurality of three or more electrical contacts define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: June 17, 2014
    Assignee: Eastman Kodak Company
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Patent number: 8714674
    Abstract: A continuous printing system includes a printhead and a controller. The printhead includes a nozzle and a jet control element including a continuous heater element positioned to surround the nozzle. A plurality of three or more electrical contacts is in electrical communication with the continuous heater element and define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts. A controller is configured to apply a waveform to at least one of the plurality of three or more electrical contacts to affect at least one of the plurality of independently actuatable continuous heater element portions.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 6, 2014
    Assignee: Eastman Kodak Company
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Patent number: 8714675
    Abstract: A method of printing includes providing a printhead including a jet control element including a continuous heater element positioned to surround a nozzle. A plurality of three or more electrical contacts is in electrical communication with the continuous heater element. The plurality of three or more electrical contacts define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts. A liquid is provided under a pressure sufficient to eject a jet of liquid through the nozzle. A waveform is applied to at least one of the plurality of three or more electrical contacts using a controller to affect at least one of the plurality of independently actuatable continuous heater element portions to control the jet of liquid.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 6, 2014
    Assignee: Eastman Kodak Company
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Publication number: 20130194328
    Abstract: A printhead includes a nozzle and a jet control element. The jet control element includes a continuous heater element positioned to surround the nozzle and a plurality of three or more electrical contacts in electrical communication with the continuous heater element. The plurality of three or more electrical contacts define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Publication number: 20130194330
    Abstract: A continuous printing system includes a printhead and a controller. The printhead includes a nozzle and a jet control element including a continuous heater element positioned to surround the nozzle. A plurality of three or more electrical contacts is in electrical communication with the continuous heater element and define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts. A controller is configured to apply a waveform to at least one of the plurality of three or more electrical contacts to affect at least one of the plurality of independently actuatable continuous heater element portions.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Publication number: 20130194331
    Abstract: A method of printing includes providing a printhead including a jet control element including a continuous heater element positioned to surround a nozzle. A plurality of three or more electrical contacts is in electrical communication with the continuous heater element. The plurality of three or more electrical contacts define a plurality of three or more continuous heater element portions that are actuatable with sufficient independence so as to control jet steering. The number of the continuous heater element portions equals the number of electrical contacts. A liquid is provided under a pressure sufficient to eject a jet of liquid through the nozzle. A waveform is applied to at least one of the plurality of three or more electrical contacts using a controller to affect at least one of the plurality of independently actuatable continuous heater element portions to control the jet of liquid.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: James A. Katerberg, Ronald J. Duke, Gilbert A. Hawkins
  • Publication number: 20130194338
    Abstract: A continuous printer system includes a jet control element, associated with each nozzle bore of an array of nozzle bores, which is selectively actuated to form or steer or form and steer print drops from a liquid stream emitted from the associated nozzle bore. A memory element associated with the inkjet printer is selectively loaded during a printing operation with data that modifies the subsequent actuation of each of the jet control elements to form or steer or form and steer print drops that print pixels on a receiver in a second regularly spaced pixel grid, the second regularly spaced pixel grid having a second spatial density of pixels extending in a direction perpendicular to a travel path of the receiver that is different when compared to a first spatial density of a first regularly spaced pixel grid.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: Gilbert A. Hawkins, James A. Katerberg
  • Publication number: 20130194339
    Abstract: A method of printing includes selectively loading a memory element during a printing operation with data that modifies a subsequent actuation of jet control elements to form or steer or form and steer print drops that print pixels on a receiver in a second regularly spaced pixel grid, the second regularly spaced pixel grid having a second spatial density of pixels extending in a direction perpendicular to a travel path of the receiver that is different when compared to a first spatial density of a first regularly spaced pixel grid, printing pixels on the receiver in the second regularly spaced pixel grid, and catching drops that are formed but not used to print pixels on the receiver in the first regularly spaced pixel grid or used to print pixels on the receiver in the second regularly spaced pixel grid.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Inventors: Gilbert A. Hawkins, James A. Katerberg
  • Patent number: 8454134
    Abstract: A method of printing includes selectively loading a memory element during a printing operation with data that modifies a subsequent actuation of jet control elements to form or steer or form and steer print drops that print pixels on a receiver in a second regularly spaced pixel grid, the second regularly spaced pixel grid having a second spatial density of pixels extending in a direction perpendicular to a travel path of the receiver that is different when compared to a first spatial density of a first regularly spaced pixel grid, and printing pixels on the receiver in the second regularly spaced pixel grid.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: June 4, 2013
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, James A. Katerberg
  • Patent number: 8226199
    Abstract: A jet break-off length measurement apparatus for a continuous liquid drop emission system is provided. The jet break-off length measurement apparatus comprises a liquid drop emitter containing a positively pressurized liquid in flow communication with at least one nozzle for emitting a continuous stream of liquid. Heater resistor apparatus is adapted to transfer pulses of thermal energy to the liquid in flow communication with the at least one nozzle sufficient to cause the break-off of the at least one continuous stream of liquid into a stream of drops of predetermined volumes. A sensing apparatus adapted to detect the stream of drops of predetermined volumes is provided. A control apparatus is adapted to determine a characteristic of the stream of drops of predetermined volumes that is related to the break-off length. Further apparatus is adapted to inductively charge at least one drop and to cause electric field deflection of charged drops.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: July 24, 2012
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Michael J. Piatt, John C. Brazas, Stephen F. Pond
  • Patent number: 8029105
    Abstract: A method of treating a printer component, a printhead, and a printer are provided. The method includes providing an electrode proximate to the printer component to be treated; introducing a plasma treatment gas in an area proximate to the printer component to be treated; and treating the printer component by applying power to the electrode thereby producing a micro-scale plasma at near atmospheric pressure, the micro-scale plasma acting on the printer component.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 4, 2011
    Assignee: Eastman Kodak Company
    Inventors: Kurt D. Sieber, Jeremy M. Grace, Gilbert A. Hawkins
  • Patent number: 8016395
    Abstract: A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, the fluid control surface including a pattern that guides the fluid; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device by guiding the fluid using the pattern of the fluid control surface while the fluid is in contact with the pattern of the fluid control device such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: September 13, 2011
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Zhanjun Gao, Yonglin Xie, Edward P. Furlani, Kam C. Ng
  • Patent number: 8011764
    Abstract: A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, a portion of the fluid control surface being moveable; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device by moving the moveable portion of the fluid control surface while the fluid is in contact with the fluid control surface such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device depending on the position of the moveable portion of the fluid control surface.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: September 6, 2011
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Zhanjun Gao, Yonglin Xie, Edward P. Furlani, Kam C. Ng
  • Patent number: 8007082
    Abstract: A device and a method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow velocity characteristic; providing a fluid control device including a fluid control surface, the fluid control surface including a pattern that changes the velocity of the fluid; and causing the fluid to interact with the fluid control surface of the fluid control device using the pattern of the fluid control surface while the fluid is in contact with the pattern of the fluid control device such that the fluid flow velocity characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow velocity characteristic of the fluid before interaction with the fluid control surface of the fluid control device.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: August 30, 2011
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Zhanjun Gao, Yonglin Xie, Edward P. Furlani, Kam C. Ng
  • Patent number: 7988250
    Abstract: A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore. An electrical pulse source is in electrical communication with the thermal modulator. The electrical pulse source is operable to provide a series of pulses to the thermal modulator that control the transient temperature lowering of the liquid. The series of pulses includes a first pulse applied at a first power level for transferring heat to the liquid, a second pulse applied at a second power level for transferring heat to the liquid, and a third pulse applied at a third power level for transferring heat to the liquid. The third power level is in between the first power level and the second power level.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: August 2, 2011
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Siddhartha Ghosh, Christopher N. Delametter, Edward P. Furlani
  • Patent number: 7946692
    Abstract: A device and method of controlling fluid flow are provided. The method includes providing a moving fluid including a fluid flow characteristic; providing a fluid control device including a fluid control surface, the fluid control surface including a pattern; causing the fluid to contact the fluid control surface of the fluid control device; and causing the fluid to interact with the fluid control surface of the fluid control device using the pattern of the fluid control surface that, when activated, causes adjacent fluid drops to merge or coalesce while the fluid is in contact with the pattern of the fluid control device such that the fluid flow characteristic of the fluid after interacting with the fluid control surface of the fluid control device is different from the fluid flow characteristic of the fluid before interaction with the fluid control surface of the fluid control device.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 24, 2011
    Assignee: Eastman Kodak Company
    Inventors: Gilbert A. Hawkins, Zhanjun Gao, Yonglin Xie, Edward P. Furlani, Kam C. Ng
  • Publication number: 20110025741
    Abstract: A printer includes a printhead and a source of liquid. The printhead includes a nozzle bore. The liquid is under pressure sufficient to eject a column of the liquid through the nozzle bore. The liquid has a temperature. A thermal modulator is associated with the nozzle bore. The thermal modulator is operable to transiently lower the temperature of the liquid as the liquid is ejected through the nozzle bore. An electrical pulse source is in electrical communication with the thermal modulator. The electrical pulse source is operable to provide a series of pulses to the thermal modulator that control the transient temperature lowering of the liquid. The series of pulses includes a first pulse applied at a first power level for transferring heat to the liquid, a second pulse applied at a second power level for transferring heat to the liquid, and a third pulse applied at a third power level for transferring heat to the liquid. The third power level is in between the first power level and the second power level.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Inventors: Gilbert A. Hawkins, Siddhartha Ghosh, Christopher N. Delametter, Edward P. Furlani